If a base is negative, how will you know whether the answer is positive or negative before evaluating it?

The expression 6x2 gives the surface area of a cube, and the expression x3 gives the volume of a cube, where x is the length of one side of the cube. find the surface area and the volume of a cube with a side length of 6m

Pyramid shown has a square base that is 18 inches on each side has a surface area of 164 square inches what is the slant height

Which questions would most a reader identify the author's purpose for writing? check all that apply. what type of text is this? what type of reviews did the book receive? how many copies of the book have been sold? what is the central idea? how does this text make one feel?